热门试题:
[单选题]炉、窑、槽、罐类设备本体及附属设施定期检查的内容包括焊缝开裂、腐蚀、()、衬砖损坏、壳体发红及明显弯曲变形等。
A.破损
B.探伤
C.凹陷
D.异物
[单项选择]
目前,LNG船舶已采用双燃料内燃机作为推进装置,与蒸汽轮机推进装置相比主要特点是()。
Ⅰ.可以节省大量舱内空间和减轻动力装置重量;
Ⅱ.可以使用燃油和天然气混合燃料;
Ⅲ.可靠性高、单位重量的功率大;
Ⅳ.热效率高。
A. Ⅰ+Ⅳ
B. Ⅱ+Ⅲ
C. Ⅰ+Ⅱ+Ⅳ
D. Ⅰ~Ⅳ
[单选题]仪表风故障后,裂解工序处理正确的是()。( )
A.为了保障超高压蒸汽产量裂解炉继续运转
B.裂解炉须紧急停车
C.急
冷油系统停止运转
[多选题]硫化氢轻度中毒症状( )。
A. 畏光流泪眼刺痛;
B. 流涕鼻及咽喉灼热感;
C. 眼结膜充血;
D. 恶心呕吐。
[单选题]关于自身免疫正确的是
A.是机体免疫系统对自身成分产生正常的免疫应答,出现自身抗体或致敏淋巴细胞的现象
B.是机体免疫系统功能低下时对自身成分产生的免疫应答,出现自身抗体或致敏淋巴细胞的现象
C.是机体免疫系统功能增强时对自身成分产生的免疫应答,出现自身抗体或致敏淋巴细胞的现象
D.是机体免疫系统受某种因素作用使自身免疫耐受削弱或破坏时,对自身成分产生的免疫应答,出现自身抗体或致敏淋巴细胞的现象
E.是机体受某种因素作用使自身免疫被破坏,对自身成分产生的免疫应答,出现自身抗体或致敏淋巴细胞的现象
[单项选择]Ⅱ a型高脂蛋白血症的血清检查特点是
A. 血清透明,胆固醇明显增加,甘油三酯正常
B. 血清乳白色,胆固醇正常或稍高,甘油三酯明显增加
C. 血清混浊,胆固醇稍高,甘油三酯增高
D. 血清混浊,胆固醇正常,甘油三酯稍高
E. 血清透明,胆固醇增加,甘油三酯增加
[判断题]溜放作业中,在一个车组上多人进行制动时,应听从调车长的指挥。
A.正确
B.错误
[多项选择]外宾团的全陪提供各站服务主要包括()。
A. 监督、协助各站地陪工作
B. 保护游客安全
C. 组织游客参观游览
D. 做好联络工作
[判断题]电力机车升弓做高压试验前,必须确认各高压室和地沟内无人后方可进行。高压试验升、降弓,必须按规定鸣笛和呼唤应答后方可进行,以保证人身安全。( )
A.正确
B.错误
[多选题]定量分析中由于多种可变原因造成的误差不属于(______)
A.绝对误差
B.相对误差
C.系统误差
D.偶然误差
[多项选择](2007年)企业法人不能清偿到期债务,并且资产不足以清偿全部债务或者明显缺乏清偿能力的,根据《企业破产法》的规定,该企业法人可以选择以下哪些程序处理其与债权人之间的债权债务关系()
A. 申请破产清算
B. 直接向法院申请和解
C. 决议解散并进行清算
D. 直接向法院申请重整
[多选题]发光二极管的(),在光纤传输距离要求不高、码元速率要求不高的数字光纤通信系统中应用最为广泛。
A.制造成本低廉
B.制造工艺简单
C.可靠性好
D.容量大
[单选题]起重时两根钢丝绳之间的夹角越大(但一般不得大于60o)所能起吊的质量越( )。
A.大;
B.小;
C.不变;
D.略变。
[单选题]新生儿黄疸出现下列哪种情况应进行换血疗法( )
A. 每日胆红素上升不超过 85µmol/L(5mg/dl)
B. 血清总胆红素<205µmol/L(12mg/dl)
C. 血清总胆红素>342µmol/L(20mg/dl)
D. 血清总胆红素<257µmol/L(12mg/dl)
[单选题]保证金专用外汇账户可以开立()
A.1个
B.2个
C.3个
D.多个
[多选题]电力线路第二种工作票,对()工作,可在数条线路上共用一张工作票。
A.同一班组
B.同一电压等级
C.同类型
D.相同安全措施
[单项选择]
Star Quality
A new anti-cheating system for counting the judges’ scores in ice skating is flawed, according to leading sports specialists. Ice skating’s governing body announced the new rules last week after concerns that a judge at the Winter Olympics may have been unfairly influenced.
Initially the judges in the pairs figure-skating event at the Winter Olympics in Salt Lake City voted 5 to 4 to give the gold medal to a Russian pair, even though they had a fall during their routine. But the International Skating Union suspended the French judge for failing to reveal that she had been put under pressure to vote for the Russians. The International Olympics Committee then decided to give a second gold to the Canadian runners-up (亚军) .
The ISU, skating’s governing body, now says it intends to change the rules. In future 14 judges will judge each event, but only 7 of their scores-selected at random-will count.
The ISU won’t fin
A. The number of judges will be doubled.
B. Only half of the judges will score.
C. Only some selected judges will score.
D. Only half of the scores will count.
[单选题]采用()时,碴土应有良好的流塑状态、良好的粘稠度、低的内摩擦角和低的透水性.当满足不了需求时,需给开挖面、混合仓和螺旋输送机内注入外加剂对碴土进行改良,使开挖土具有流动性和止水性。
A.敞开式
B.半敞开式
C.土压平衡式
D.泥水加压平衡式
[多选题] 依据《国家电网公司安全事故调查规程》(国家电网安监〔2020〕820号),公司安全事故等级分为一至八级共八级事件,其中一至四级事件对应国家相关法规定义的( )。
A. 特别重大事故
B. 重大事故
C. 较大事故
D. 一般事故
[单选题] 患者,女性,50 岁,患慢性支气管炎,阻塞性肺气肿 20 年,近 3 年来出现双下肢水肿,两天前感冒后病情加重,口唇发绀,神志恍惚,双下肺闻及湿啰音,心率 120 次/分。为确诊该患者是否出现呼吸衰竭,下列哪项指标最有意义( )
A.发绀的程度
B.血气分析
C.呼吸困难的程度
D.神志状态
E.肺功能检查结果
[单选题]甲、乙两人从5项健身项目中各选2项,则甲、乙所选的健身项目中至少有一项不相同的选法共有()。
A.36 种
B.81 种
C.90 种
D.100 种
[单项选择]单向板楼板主梁跨度一般为( )m。
A. 1~4
B. 3~6
C. 6~7
D. 6~9
[多选题]开挖边坡计算放坡值时,一般性黏土包括()。
A.硬性黏土
B.硬、塑性黏土
C.软黏土
D.充填砂土
E.砂土
[单选题]随着青年男女在生理发育过程中的日渐成熟,也越来越接近性的成熟期,这一时期称为( )。
A.朦胧期
B.泛爱期
C.浪漫期
D.初步形成时期
[判断题]2.52 机动车所有人应当在临时行驶车号牌的有效期限内到住所地车辆管理所申请机动车转入。
A.正确
B.错误
[单选题](86520)从停留车辆(或车列)端部横越线路时,要留有安全距离,搬运材料工具时应不少于 ( )。(1.0分)
A.3 m
B.5 m
C.8 m
D.2 m
[单选题] 现场防护员与驻站联络员联系中断或不畅时,要立即组织( )下道,待联系恢复正常后方可继续上道作业。(工务线路手工综合检查作业指导书3.18.6.2) (0.5分)
A.领导干部
B.施工负责人
C.作业人员
D.民工
[单项选择]按照1970年全国烧伤会议确定的标准,符合重度烧伤的是().
A. 烧伤总面积20%,或Ⅲ度烧伤面积15%以上
B. 烧伤总面积30%,或Ⅲ度烧伤面积10%以上
C. 烧伤总面积51%,浅Ⅱ度20%,深Ⅱ度31%
D. 烧伤总面积31%,Ⅲ度烧伤面积21%
E. 小儿烧伤总面积26%,Ⅱ度烧伤面积10%
[单选题]《南昌局集团公司军运列车客运乘务管理办法》(南铁客〔2020〕97号)规定军运列车每节车厢配备喇叭()只。
A.1
B.2
C.3
D.4
[单项选择]不符合月骨脱位临床表现的是:()
A. 腕部掌侧隆起、疼痛
B. 掌腕横纹处有压痛
C. 腕关节呈屈曲位
D. 叩击第2掌骨头有明显疼痛
E. 手指屈曲困难
[单选题]在比亚迪制度的制定和执行坚持( 公平、公正、公开 )的原则 。
A.A.公平、公正、公开
B.B.以利润为中心
C.C.从上至下
D.D.高效
[不定项选择题]共用题干
People in Beijing wear a lot of clothing during winter to fend(抵御)off the cold.In the United States,however,people wear________(51),partly because the car is the primary mode of transportation.Cars take_________(52)straight to their workplaces,which are heated well.The American diet is full of calories,so their__________(53)can afford to burn heat more quickly.
Fewer layers of clothing give people the opportunity to stay__________(54).Lots of Yale girls wear skirts _________( 55 ) when it's 10 degrees Centigrade(摄氏温度的)outside. Some of them at least wear boots,tights(裤袜),and leg-warmers(暖腿套).Some,however,really just go for(选择)the look__________(56)the risk of health.These girls have nothing to prevent their legs _________( 57 ) the wind , and no socks to protect their feet. A mini skirt and a pair of stilettos(细高跟鞋)are all that they wear.
Typically,the ones pursuing fashion are__________(58),with little body fat. Just by the nature of their bodies,they are already at a disadvantage compared with normal people in__________(59) weather. I have always _________(60) ,whenever I pass these girls,how they manage to refrain from shivering and just smile like spring had arrived.
And then there are the guys.The girls can be said to_________(61)health for beauty.But why do guys________(62 ) so little? It is not like , once they shed(脱掉)some layers , they suddenly become better-looking. They are not exactly being fashionable when they__________(63)wear sporty (花哨的)shorts and shower slippers in the midst of winter. It's not cute(喜人的).
Of course,people have the freedom to look whatever_________(64)they want. I am just surprised that,given the vast difference between winter and summer temperatures in Connecticut,they can still________(65)like they are partying on the beach in the middle of February.
_________(57)
A.with
B.against
C.above
D.under
[单选题]当一定量的组分通过气相色谱检测器时,所产生的电信号的大小定义为()
A.检出限
B.最小检出限
C.灵敏度
D.敏感度
[单选题]地下变主体结构施工,在进行钢支撑安装施工时,下列说法正确的是()。
A.施工现场作业区域、应设置施工围栏和安全标志
B.起重机械未经过进场检查,各部位动作灵敏
C.吊装过程应缓慢,不需有专人指挥
D.钢支撑提升离开基座20cm时应停下检查
E.略
F.略